Window-screen.



E. SONNTAG.

WINDOW SCREEN.

APPLICATION FILED mm:

MW R9 8 n m H 0 H M M R n A PM a Am J as 6 2 HE NORRIS PETERS ca. FHOTC-LITHO.. WASHING-MN, D. C

E. SONNTAG.

WINDOW SCREEN.

I APPLICATION FILED APR.2I,1914. 1,136,730. Patented Apr. 20, 1915.

2 SHEETS-SHEET 2.

0 26' WITNESSES 77 #2 9 lA/l/E/VTOR ,Z'ayenad'onn {.29

ATTORNEYS THE NORRIS PETERS c0. PHOTuurHa, WASHINGTON. D. c.

NT FFIQEG EUGENE SONNTAG, OF NEW YORK, N. Y.

WINDOW-SCREEN.

Specification of Letters Patent.

Application filed April 21, 1914. Serial No. 833,439.

To all whom it may concern:

Be it known that I, EUGENE SONNTAG, a citizen of the United States, and a resident of the city of New York, Long Island City, borough of Queens, in the county of Queens and State of New York, have invented a new and Improved Window-Screen, of which the following is a full, clear, and exact description.

This invention relates to window screens of that type including two sections arranged respectively at the top and bottom of the window frame to close the gaps at the top and bottom of the lower sash when the latter is raised for ventilating purposes, the said sections of the screen being mounted on runners so as to be sliding, and having clamps for engaging the runners, whereby the screen sections can be held in place and readily adjusted.

The invention has for its general objects to improve and simplify the construction of window screens of the character referred to so as to be reliable and efficient in use, readily adjusted to open or closed position, and so designed as to absolutely prevent the entrance of flies, mosquitos or other insects, as

cracks between the frames of the screens and the window frame and sashes are avoided.

Another object of the invention is the provision of a window screen frame which is manufactured in corner or end sections which can be adjustably connected together to form a rectangular frame of any desired width or size, according to the dimensions of the window to which the frame is to be applied, and after the sections are nailed or otherwise secured together, the netting is fitted and fastened to the resultant frame so as to make a non-alterable fixed frame which is detachably and slidably mounted in the window.

A further object of the invention is the provision of a window screen frame of the character referred to with novel means for detachably connecting the frame with runners arranged on the frame of the window, such means serving as clamps whereby the screen can be locked in raised or lowered position on the runners.

Still another object of the invention is to provide a screen frame having a novel arrangement of sealing strips whereby the point of contact of the screen frame with the window frame or sash is effectively sealed so that insects cannot enter through the cracks that would otherwise be formed.

vVith such objects in view, and others which will appear as the description proceeds, the invention comprises various novel features of construction and arrangement of parts which will be set forth with particularity in, the following description and claims appended hereto.

In the accompanying drawing, which illustrates one embodiment of the invention, and wherein similar characters of reference indicate corresponding parts in all the views, Figure 1 is a vertical section of the window frame, showing the lower sash open and the upper and lower screens in position; Fig. 2 is a perspective view of the sections of the upper screen before the said sections are fastened together to form a fixed screen frame; Fig. 3 is a perspective view of two corner sections of the lower screen frame; Fig. 4 is a fragmentary front view of the lower screen; Figs. 5 and 6 are enlarged sectional views respectively on the lines 55, 66, Fig. 4; and Fig. 7 is a perspective view of one corner of a screen frame, showing the runner-engaging clamp detached from its bolt.

Referring to the drawing, A designates an ordinary window frame having the upper and lower sashes 1 and 2, the upper sash being slightly lowered and the lower sash being raised about three-quarters its range of movement. The gap above the lower sash is closed by an upper screen B, and the gap below the lower sash is closed by a lower screen G, the screens together being in vertical dimensions about equal to the total length of movement of which the lower sash is capable, whereby the bottom of the upper screen will overlap the top bar 3 of the lower sash, and the top of the lower screen will overlap the bottom bar 4; of the lower sash. The frame A has longitudinal runners 6 on which the upper and lower screens are fastened and on which they are capable of having a vertical sliding movement. The runners are rabbeted to provide a longitudinal flange 7 behind which flanges on the side bars of the screen frames engage.

The upper screen has its frame made in two sections 6 and b, and each section comprises a vertical bar 8 and horizontal bars 9 and 10 which are connected by miter or other joints 11, and in the oints are inserts Patented Apr. so, rare.

12 for reinforcing and stiffening purposes. The bar 9 has a longitudinal slot 13 extending inwardly from its free end to a considerable distance, and the bar 10 has a tongue 14 extending longitudinally from its free end and is of considerable length. The sections Z) and b are fitted together in such a manner that thetongue let on one section will enter the slot 13 in the corresponding portion of the other section, whereby the two sections adjustably interfit, so that the frame can be lengthened or contracted to fit any size window frame. After the sections have been =fitted together to produce a frame of proper length, the bar 10 of each section is nailed to the bar 9 of the other section. The netting 15 is then secured to the frame in any desired manner. According .to the present method the front surfaces of the bars 8, 9 and 10 of the screen frame are .provided with longitudinal .grooves 16, and strips 17 are fastened to the bars of the frame, and these strips have tongues 18 to enter the grooves '16 .and therebyclamp the edges of the netting to the frame. As shown in Fig. 1, the top bar of the upper screen is provided with a .flexible sealing strip of rubber, felt or any other suitable material, and this strip 19 is inserted between the netting-holding strip 17 and the top bar of the screen frame, and this sealing strip 19 is adapted to'bear againstthe top of the window frame and close the crack that-would otherwise be formed. A sealing strip 20 is applied to the bottom of the screen frame so as to engage the upper bar 3 of the lower sash and close the crack. This sealing strip 20 is fastened to the screen frame in any suitable manner, as, for instance, by a stiff strip 21 of wood or other suitable material which is nailed to the screen frame. 7

The vertical bars 8 havetheir outer edges rabbeted to form flanges 22 which engage behind the flanges 7 of the runners 6, so that the screen canbe slid up and down on the runners. .A clampingblock 23 is provided at each corner of the screen frameand projects outwardly to engage over the front of the runners 6 and engage the flange 7 thereof. These blocks are set into recesses 24 provided in the corners'of the screen frame, andare held in place by bolts 25 that pass through the screen frame and through the clamping blocks 23, the bolts having thumb nuts 26 for easy manipulation. As shown in Fig. 7, each'block 23 has a rib 27 teengage in thegroove 16 of the bar 8to which the clamping block is fastened, and the recess for each clamping block isprovided between the end of the vertical screen-holding strip Bend the bottom edge of the adjacent horizontal screen-holding strip 18, as clearly shown in Fig. 7. Normally the blocks 23 are clamped tightly in engagement with the runners by the nuts of the bolts being jammed tight, but when the screens are to be slid up and down the nuts are loosened so as to release'the clamping blocks 23 from the runners to allow free movement. By

detaching the clamping blocks the screen can be wholly removed from the window frame, as at the end of the season, or when the windows are to be cleaned.

The lower screen C is constructed in de-.

screen frame oan be .made of any desired height :or width, according to the size of the window :frame, and as the sections .of the lower screen frame are :made of,.similar stock as the upper screen frame, the parts are correspondingly numbered by reference characters, so that a zrepeated description is unnecessary.

From the foregoing description taken in connection with the accompanying drawing, the advantages of the construction and method .of operation will be readily understoodlby thoseskilled in the art-to which the invention appertains, and while I have describedthe .device which I now-consider to be the best embodiment thereof, I desire to have it understood that the deviceshown is merely illustrative and that :such changes may be made when desired as are 'withlnthe scope of .the appended claims.

Having thus :described my invention, I claim as new and desire to secure by Letters Patent: V

1. A window screen composed of sections formed of bars, each pair of 1 corresponding bars of the sections having respectively a longitudinal slot and, a tongue fitting in the slot, whereby a frame ofany desired size may be formed, .asingle piece of netting having its. fouredges fastened to the frame, andstripsfas'tening the netting-to the frame and serving to cover-the gaps between the slotted and tongued bars of thesections'.

2. :A window screen composed of sections formed of bars, each pair of corresponding bars of the sections having respectively a longitudinal slot and a tongue fitting in the slot, whereby a frame of any desired size may be formed, a :netting for the frame, strips fastening .the netting to the frame and serving to cover the gaps between the slotted Land tongued bars of the sections, a flexible sealing strip extending horizontally from one of-the horizontal'bars of the frame, and a flexible .sealing strip "extending vertically from the other horizontal bar of the frame.

3. .A screen :comprising a frame having runner engaging rflanges at its ends, a plurality of runner-engaging blocks at the ends cooperating with the said flanges to mount the screen in a window frame, and means for loosening or tightening the blocks, whereby the blocks can be held in sliding or frictional engagement with the runners, in combination with a window frame, and runners on opposite sides of the window frame and each provided with a screen-guiding flange, said screen frame being disposed between the runners, with the flanges of the screen frame engaging the flanges of the runners and the blocks projecting beyond the screen frame and engaging the flanges of the runners.

A screen comprising a frame having grooved vertical and horizontal bars, a netting covering the frame, the vertical bars of the frame having runner-engaging flanges, tongued strips secured to the bars of the frame and serving to fasten the netting thereto, the vertical strips being of less length than the distance between the horizontal strips to provide recesses between the ends of the vertical strips and the horizontal strips, clamping blocks disposed in said recesses, and the said blocks having tongues to engage in the grooves of the vertical bars, and the blocks extending outwardly from the sides of the bar to cooperate with the flanges on the vertical bars to engage screen runners, and means for fastening the blocks to the vertical bar.

Copies of this patent ma: be obtained for five cents each, by addressing the 5. A screen composed of sections forming the frame, each section including a pair of rigidly connected members, one member having a longitudinal slot extending inwardly from one end, and the other member having a longitudinal tongue adapted to enter the slot of the slotted member of another section, a netting fastened to the frame, strips fastened to the front side of the screen frame and bridging the gaps between the sections thereof, and sealing strips at the top and bottom of the frame, one sealing strip extending upwardly and the other strip extending laterally from the frame.

6. A rigid rectangular screen frame in cluding a plurality of sections, each section consisting of rigidly connected members each having on one side face a groove for receiving a piece of netting, one member having a longitudinal slot and the other having a longitudinal tongue, in combination with a single piece of netting fastened at all its edges to the frame.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EUGENE SON N TAG. Witnesses OTTO CHARLES HOERIG, OHATTEN BRADWAY.

Commissioner of Patents,

Washington, D. G. 

